Temperature is directly proportional to the average kinetic energy of the molecules.
KE = 3/2 kT ...... where KE is the average kinetic energy of a molecule and k is Boltzmann's constant (1.381x10^-23 J/K).
KE = 3/2 RT ...... where KE is the average kinetic energy for a mole of molecules and R is the gas constant (8.314 J/molK).
Therefore, as KE decreases, T decreases and it gets cooler.
It gets cooler...as metal gains energy it becomes hotter and melts...
**The correct answer is C
Answer:
[He]2p6
Explanation:
Fluorine has an atomoc number of 9 which means 9 electrons with the electon configuration:[He]2p5,However,when it becomes Fluoride ion,it gains one electron to complete its outermost shell to obtain an octet configuration and becomes [He]2p6.
The answer is not D, because water creates turgidity.
The answer is not C, because water is important in many biological reactions.
The answer is either A, or B. Knowing that water composes almost 75% of the body, you can assume that It is a common substance, for A, or you could know that is allows reactions to occur more easily, acting as a sort of catalyst, for answer B.
A or B. Your call for the final answer.
Volcanic eruptions are caused by earth's internal heat sources.
All the other choices are atmospheric or external earth.
Answer
The mole ratio is 1:1
The molar mass of potassium hydrogen phthalate (C8H5KO4) is 204.22g/mol
The mass of C8H5KO4 is 0.43g
The no of moles of C8H5KO4 = mass/molar mass
No of Moles of C8H5KO4 = 0.000210557242mol
From Mole ratio the no of mole of NaOH that reacted with C8H5KO4 0.000210557242
Therefore, molaroty of NaOH is mole of NaOH/the Volume in L
Molaroty if NaOH = 0.000210557242/0.02411 = 0.08733M